VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator)
Series: VM32S
Output: Clipped Sine Wave
Load: 10 K
// 10 pF
Features:
3.2x2.5x1.0 (H) mm miniature ceramic SMD.
Low supply voltage: 1.8, 2.5 or 3.0V
Miniature, light weight and compact.
Ideal for portable devices such as GPS and handsets.
General Specifications
Mercury Product Series
Output Wave From
Supply Voltage
Frequency Range (fo)
Initial Calibration Tolerance
Frequency Stability
vs Temperature
vs Aging
vs Voltage Change
vs Load Change
vs Reflow
Temp
ppm
MERCURY
Since 1973
(at+25°C and specified input voltage)
VM32S
Refer to “M32S” series (TCXO) if voltage control function is not required.
Clipped Sine
wave. Wave form code is “S”
1.8V±5%
2.5V±5%
3.0V±5%
(1.71V ~ 1.89V)
(2.37V ~ 2.62V)
(2.85V ~ 3.15V)
13 MHz ~ 52 MHz
10 MHz ~ 52 MHz
10 MHz ~ 52 MHz
±2 ppm. Max. +25°C, 1 hour after reflow.
From 0.5 ppm to ±2.5 ppm over operating temperature range. Referenced to
frequency reading at +25°C. See table below for availability
±1.0 ppm max. first year at +25°C
±0.2 ppm max. for a ±5% input voltage change
±0.2 ppm max. for a ±10% loading condition change
±1 ppm max. 1 reflow and measured 24 hours afterwards
√:Available
±0.5 ppm
±1.0 ppm
±1.5 ppm
±2.0 ppm
±2.5 ppm
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
:
Call us
Available Frequency
stability vs Operating
Temperature Range
0 to +55°C
-10 to +60°C
-20 to +70°C
-30 to +85°C
-40 to +85°C
STD
:
Standard
Spec.
STD
√
Output Voltage Level (peak to peak)
Output format
Current Consumption.
(Over operating temperature range)
VCTCXO
only
Control voltage (Vcon)
Frequency Deviation
Range (Pullability)
Linearity
Slope Polarity
Input Impedance
Start-up Time.
Packaging
0.8 V p-p min. 2.0V p-p max. Load is 10 K
// 10 pF ±10%.
DC coupled. See next page for the output waveform.
Requires an external AC-Coupling capacitor at pin 3. 1000 pF is recommended.
fo < 26 MHz: 2 mA max.
fo ≥ 26 MHz: 2.5 mA max.
0.9V (center) ± 0.6 V
1.4V (center) ± 1.0 V
±5 ppm min.
±10 % max.
Positive slope. Positive voltage change for positive frequency shift.
500 KΩ min.
2 m. sec. max. (reach 90% amplitude and at+25°C±2°C)
8.0 mm tape; 4.0 mm pitch; 180 mm reel;
1000 pcs (code=P1) or 3000 pcs (code =P3) per reel.
Cut tape for < 1K pcs
1.5V (center) ± 1.0 V
Pin 1
MERCURY
Page 1 of 3
Date: Sept. 27, 2012
Rev. 1
VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator)
Series: VM32S
Output: Clipped Sine Wave
Load: 10 K
// 10 pF
Environmental Performance Specifications
MERCURY
Since 1973
Green Requirement
Moisture sensitivity level
Humidity
Hermeticity, fine leak
Hermeticity, gross leak
Solderability
Vibration
Mechanical shock
Resistance to solvent
Resistance to soldering heat
Temperature cycling
Thermal shock
H.A.S.T. (Highly Accelerated Stress Test)
Storage temperature range
ESD protection
Solder pad surface finish
Second level interconnect category
Unit weight
Output Wave Form at pin 3 –
Clipped sine wave
RoHS compliant, Pb (lead) free.
Free of Cadmium, Hexavalent Chromium, Lead, Mercury,
PBB’s and PBDE’s
MSL=1 per IPC/JEDEC J-STD-020D.1
85% RH, 85°C, 48 hours
MIL-STD-883, method 1014, condition A
MIL-STD-883, method 1014, condition C
MIL-STD-202F, method 208E
MIL-STD-883, method 2007, condition A, 10~2000 Hz,
1.52 mm, 20Gs, each axis for 4 hours
MIL-STD-883, method 2002, test condition B
1500Gs, half sine, 0.5 ms, each axis for 3 times
MIL-STD-202, method 215
MIL-STD-202, method 210
MIL-STD-883, Method 1010
MIL-STD-883F, method 1011.9, Condition B
-55~+125°C, 10 min sock time, 200 cycles
JESD22-A110
-55 to +125°C
1.5 KV min. Human body model.
Gold (0.3~1.0 um) over nickel (1.27~8.89um)
e4
0.15 grams
Typical Phase Noise
VM32S28-19.200
V p-p
Before AC-coupling capacitor
Part Number Format and Example:
Example:
VM32S28-19.200-2.5/-30+85
:
Customer to specify
VM32S
28
—
19.200
—
2.5
-30+85
P1
/
dash
dash
slash
VM32S series, “S” is wave form code for clipped sine wave
Supply voltage code: “18” for +1.8V; “28” for +2.8V; “3” for “+3.0V
Frequency (MHz)
Frequency stability (± x.x ppm)
Operating temperature range (°C).
Packaging: P1 for 1K pcs per reel; P3 for 3k pcs per reel.
MERCURY
Page 2 of 3
Date: Sept. 27, 2012
Rev. 1
VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator)
Series: VM32S
Output: Clipped Sine Wave
Load: 10 K
// 10 pF
Package Dimensions
3.2±0.15
MERCURY
Since 1973
( Unit: mm)
2.3
Clipped Sine Wave Output VCTCXO Test Circuit:
Oscilloscope
2.5±0.15
0.6
1
4
3
1.7
0.1
2
1000 pF
10K
10 pF *
1
0.1
0.7
bottom view
Vcc
SUPPLY
VOLTAGE
+
A
V
4
3
1.0
max.
Frequency counter
* Includes sum of all probe and stray capacitances
0.01
uF
1
+
2 Top view
Pad 1
Pad 2
Pad 3
Pad 4
Voltage Control
Ground
Output
Supply Voltage
1.8
1.0
0.9
Control Voltage
2.4
Recommended Reflow Soldering Profile
(per IPC/JEDEC J-STD-020D.1)
Tc-5°C
Max. Ramp Up Rate=3°C/s
Max. Ramp Down Rate=6°C/s
User Tp ≤ Tc
Ts,max
Pre-heat area
Ts,min
User tp
Time 25°C to Peak
Profile Feature
Preheat/Soak
-
Temperature min. (Ts min.)
-
Temperature max. (Ts max.)
-
Time (ts) (Ts min. to Ts max.)
Ramp-up rate (T
L
to Tp)
Liquidous temperature (T
L
)
Time (t
L
) maintained above T
L
Peak package body temperature (Tp)
Time (Tp) within 5⁰C of the classification
temperature Tc
Ramp-down rate (Tp to T
L
)
Time 25⁰C to peak temperature
Sn-Pb Eutectic Assembly
100⁰C
150⁰C
60 to 120 seconds
3⁰C / sec. max.
183⁰C
60 to 150 seconds
235⁰C
10 to 30 seconds
6⁰C / second max.
6 minutes max.
Pb-free Assembly
150⁰C
200⁰C
60 to 180 seconds
3⁰C / sec. max.
217⁰C
60 to 150 seconds
260⁰C
20 to 40 seconds
6⁰C / second max.
8 minutes max.
MERCURY
Page 3 of 3
Date: Sept. 27, 2012
Rev. 1
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